Hey rateset, yeah I am sure you have tried those volume enhancing lip glosses...? You can buy them at any convenience store, and they do help fill out the lips a bit. Let me know if you would like a list of recommended glosses.
If that doesn't work as well as you'd like (as the lip gloss makes a noticeably subtle difference, and I don't know if you're going for dramatic here), you can try Jolie Lips, Lip Plumper which is by Cosme Search
http://www.cosmesearch.com/jolielips/index.html
You may find that the website seems a little hokey because they don't even use real people to model the use of their products, which kinda irritates me, but it was so reasonably priced I thought why not, so I bought it. It does work! Actually, it works a little too much sometimes
Sometimes I look like my lips were stung by a wasp if I pump for too long with too hard of a suction! I have not been pumping long enough to know first hand if it can lead to permanent growth (I have been pumping my lip only 2-3 times per week in the past month), but I would think that the same principle of tissue expansion and result in growth would apply to this as does the Noogleberry. And yes, for me it plumps up the upper lip more than the lower lip, so this should be good for you!
And, finally, there is the cheapest option of them all: the Shot Glass Method. Take a small shot glass, pucker your lips and put the rim of the shot glass around your mouth, pressed up against your face. Then, suck the air from within the glass to your desired pressure. I suggest to start with a low suction at only three minutes, and then once you get the feel for it, work your way up to reach your own desired goals. I like the Shot Glass Method better for the purpose of getting both of my lips equally plumped, whereas the Jolie Lip Plumper mostly plumps the upper lip (at least that is what it does for me). However, you need to be careful with the Shot Glass Method because, since the skin above your upper lip and the skin below your lower lip are in the shot glass and are under pressure, you can get broken capillaries or even a bruise (I have not bruised, but I have read about other people who have). This is not much of a concern with the Jolie Lip Plumper though, because it does not suck in your skin with the lips. Actually, I have a hard time getting my entire lip involved in the suction
You can try both if you like, but I think that the Jolie Lip Plumper is the safer option (because I am just too concerned about my skin!).
Hope this helps! Let me know if you have any questions